IS there an easy way to switch the position of a feature slide?

Let me explain myself
Suppose I have a picture of San Francisco in the slide #1 in the feature slide of whitehouse pro, and in the second a pic from ny. What if I want to put NY first and SF second?
I have done it manually, a.k.a. copy pasting everything in one slide to the other, and it is kind of practical when you have 2 slides, but when you are dealing with 5 it becomes frustrating and very slow. Does anyone know a faster way to switch the information contained in one slide to other?

I think your present solution may be the best as some of the post order plugins can cause havoc with other things. There are custom post order plugins. Try WP's website www.wordpress.org/extend/plugins

I don't know of a faster approach to changing the feature slide order, but someone else might have some insight. The Post Types plugin is faster than the original approach (manually copying and pasting content from one slide to another).